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updating handles in gui/guide for webcam
Christian, I solved a similar problem by removing the associated field of the |handles| object. So essentially (and following...

9年以上前 | 0

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how to display all iterations in one matrix...below is the code which i run and get the value of z in separate vectors..how to combine them in one.
Quick and dirty: z = []; for x = E1 for y = E2 f = C*(DP1*x+DP2*y); z = [z; x y f] end end

9年以上前 | 1

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ode45 Event Option
Duncan, I put the entire code into one file and slightly changed the code (ode calls), see attachment. Works for me. One more...

9年以上前 | 0

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How can I plot a function with parametric if (change between parameters)
Chris, this should do the trick r = 0:0.1:20; r0 = 12.5; t = 39.64*(r<=r0) + 51.4875*exp(0.14*(16.37 - r)).*(r>r0); ...

9年以上前 | 0

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Using a matrix of solution elements outside of ode45
Duncan, how about simply re-building the matrix after the |ode45|-call? I assume all those variables are dependent on time, dist...

9年以上前 | 0

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plotyy: problem with ticks
Marco, still not quite sure about the end result. How about adding set(ax(1),'YLim',[minimum_left, maximum_left]) set(ax(2...

9年以上前 | 1

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How to access number of rows in one step?
Try size(theMatrix,1)

9年以上前 | 1

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how can i find the location of the largest element in a 2-D matrix not in a column or row matrix?
Navneet, e.g. A = [1 2 3; 2 3 4; 3 2 1] A = 1 2 3 2 3 4 3 2 1 [row,col] = fin...

9年以上前 | 1

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Help with solve please
Jonathan, use <https://www.mathworks.com/help/optim/ug/fsolve.html |fsolve|> instead.

9年以上前 | 0

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Problem about plotting 2D about multiple of functions
Amin, use instead y = floor(sin(x)) .* floor(x); % notice the period before the * This allows you to do element-wise mult...

9年以上前 | 1

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rlocus showing overshoot, step showing none?
Robert, the overshoot information that is shown in the root locus plot needs to be taken with a grain of salt. It essentially on...

9年以上前 | 1

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How to redirect user if they enter an incorrect input
Bree, without knowing the structure of your program I would suggest using a <https://www.mathworks.com/help/matlab/ref/while.htm...

9年以上前 | 3

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Logical indexing: More than two conditions
Do you mean x = -10:10; y = (x>=0 & x~=2).*x.^3 + (x<0).*x.^2 + (x==2).*x

9年以上前 | 2

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my laptop doesnt have enough storage for install the matlab ,there is no portable matlab available?
Elmira, depeding on your license you might have access to <https://www.mathworks.com/products/matlab-online/ MATLAB Online> and ...

9年以上前 | 1

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ode45 and additional parameters - Growth Equation
Victor, check out the following: function myODE() tspan = [0 25]; % y0 = [1 1]; % these are the initial conditi...

9年以上前 | 1

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How to draw a polar graph from r=0?
Yuval, looks like you only need to increase the number of data points (|theta|): theta = 0:0.001:2*pi; or something like ...

9年以上前 | 0

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For simple transfer function getting different result in matlab code and simulink for same pid values.
Sadeep, Fig 1. looks very much like the step input (rather than the step response). Compare this figure to g = tf(1,1) g =...

9年以上前 | 0

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Trying to plot the surface and contour plot (surfc) of the temperature distribution of a 1x1 metal plate that goes from (0,0) to (1,1), while it's heated to 100 degrees C on the corner (1,1). THANK YOU!!
Brandon, use x = linspace(0,1); y = linspace(0,1); [xG,yG] = meshgrid(x,y); T = 100*(exp((-0.1)*((xG-1).^2))).*(exp((-0....

9年以上前 | 1

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Why wont the divide operator work?
Julia, are you showing all the code? Looks like the variable |a| is not defined. As for the plot command: one of the round br...

9年以上前 | 0

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My code is producing two answers, but it is only supposed to print one.
DJ, the function is only returning only one variable, |payment|. |pay2| is only displayed because there is no semi-colon afte...

9年以上前 | 0

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Matlab function holding first value?
Hi Péter, this is explained well in the documentation <https://www.mathworks.com/help/matlab/matlab_prog/anonymous-functions.htm...

9年以上前 | 1

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problem with reduceDifferentialOrder -> massMatrixForm -> odeFunction
Carlos, the <http://www.mathworks.com/matlabcentral/fileexchange/49796-euler-lagrange-tool-package Euler-Lagrange tool package> ...

9年以上前 | 0

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phase plane in MATLAB?
Hello, check out the code below: function my_ODE() th0 = 0; Dth0 = 1; tspan = linspace(0,2,200); o...

9年以上前 | 1

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9年以上前 | 0

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Hi, what should I do to get the 'Not enough input arguments'-error,
Rebecca, yes. Use something like function d = inputErrorCheck(a,b,vargin) switch nargin case 3 if ...

9年以上前 | 0

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If I have a matrix of 100 rows by 5 columns, how can I make it a 1 row x 500 column matrix, where each row (1x5) is placed one after the other to make a 1x500 matrix?
Use the <https://www.mathworks.com/help/matlab/ref/reshape.html |reshape|> command.

9年以上前 | 0

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How to use fmincon on an symbolic integral function
Sylvia, use <https://www.mathworks.com/help/matlab/ref/integral2.html |integral2|> in combination with |fmincon|.

9年以上前 | 0

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Problem with using ode45 event option
Sourav, you need to improve the accuracy of the integration. E.g. this seems to work: options = odeset('RelTol',1e-7,'AbsTol...

9年以上前 | 0

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problem with symbolic to function handle
How about syms x y z f = x*y*z+x*2*y; G = gradient(f); m = matlabFunction(G); [X,Y,Z] = meshgrid(-3:1:...

9年以上前 | 1

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How can I graph all the values of n in the while loop ? Theres my program.
Something like this? Not quite sure what you want your x-axis to be. n = input('Enter a natural number'); cont=1:1:n; ...

9年以上前 | 0